875783-48-5Relevant articles and documents
A supramolecular zigzag chain of organometallic dipoles mediated by PF 6- anions
Duarte, M. Teresa,Piedade, M. Fatima M.,Robalo, M. Paula,Teixeira, Antonio P. S.,Garcia, M. Helena
, p. m386-m389 (2005)
The title compound, (η5-cyclopentadienyl)(4- nitrobenzonitrile-κN(trimethylphosphine-κP)(triphenylphosphite- κP)-iron(II) hexafluorophosphate, [Fe(C5H5)(C 7H4N2O2)(C18-H 15O3P)(C3H9P)]PF6, has been characterized by spectroscopic and X-ray diffraction in order to evaluate the tuning of the electron density at the metal centre and the extension of the π delocalization on the molecule due to the presence of phosphite and phosphine co-ligands. The compound crystallizes in the centrosymmetric space group P21/c, which destroys the possibility of exhibiting any quadratic non-linear optical properties. The packing shows a supramolecular zigzag chain of antiparallel cations connected via the PF6 - anions through C-H...Fδ- interactions, with H...F distances ranging from 2.39 to 2.67 A. Each zigzag chain is composed of isomeric organometallic fragments containing either R or S molecules. These chains are connected through weak intermolecular C-H...C interactions, forming a two-dimensional plane parallel to (101).
